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RT9187CGB
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection
Package: TO-220
Essence: The RT9187CGB is a voltage regulator IC that provides a stable output voltage for various electronic devices.
Packaging/Quantity: The RT9187CGB is available in a TO-220 package and is typically sold in reels or tubes containing multiple units.
Specifications
- Input Voltage Range: 2.5V to 6V
- Output Voltage Range: 1.2V to 5.5V
- Maximum Output Current: 1A
- Dropout Voltage: 300mV at 1A
- Quiescent Current: 75µA
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The RT9187CGB has the following pin configuration:
- VIN: Input voltage pin
- GND: Ground pin
- VOUT: Output voltage pin
- ADJ: Adjustable pin for setting the output voltage
Functional Features
- High Efficiency: The RT9187CGB utilizes advanced circuitry to achieve high efficiency, minimizing power loss during voltage regulation.
- Low Dropout Voltage: With a low dropout voltage of only 300mV at 1A, the RT9187CGB can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
- Adjustable Output Voltage: The ADJ pin allows users to adjust the output voltage within the specified range, providing flexibility for different application requirements.
- Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive current flow, preventing damage to the device and connected components.
- Thermal Shutdown Protection: In case of excessive temperature rise, the RT9187CGB features thermal shutdown protection, automatically disabling the regulator until the temperature returns to a safe operating range.
Advantages and Disadvantages
Advantages: - High efficiency results in reduced power consumption - Low dropout voltage ensures stable output even with low input voltage - Adjustable output voltage allows for customization - Overcurrent and thermal shutdown protection enhance reliability and safety
Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications - Operating temperature range may restrict usage in extreme environments
Working Principles
The RT9187CGB is a linear voltage regulator that operates by comparing the output voltage to a reference voltage. It adjusts the resistance between the input and output to maintain a constant output voltage, compensating for changes in load and input voltage.
Detailed Application Field Plans
The RT9187CGB can be used in various electronic devices and applications, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication systems - Industrial control systems
Detailed and Complete Alternative Models
- LM317: Adjustable voltage regulator with higher maximum output current (up to 1.5A)
- LT1084: Adjustable voltage regulator with lower dropout voltage (typically 100mV at 1A)
- LM1117: Fixed voltage regulator available in various output voltage options
These alternative models offer different specifications and features, providing options for specific application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací RT9187CGB v technických řešeních
Sure! Here are 10 common questions and answers related to the application of RT9187CGB in technical solutions:
Q: What is RT9187CGB? A: RT9187CGB is a voltage regulator IC (integrated circuit) commonly used in technical solutions to regulate and stabilize voltage levels.
Q: What is the input voltage range supported by RT9187CGB? A: The input voltage range supported by RT9187CGB is typically between 2.5V and 5.5V.
Q: What is the output voltage range provided by RT9187CGB? A: RT9187CGB can provide an adjustable output voltage range from 0.8V to the input voltage level.
Q: What is the maximum output current that RT9187CGB can handle? A: RT9187CGB can handle a maximum output current of up to 500mA.
Q: Is RT9187CGB suitable for battery-powered applications? A: Yes, RT9187CGB is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Can RT9187CGB operate in both step-up and step-down configurations? A: No, RT9187CGB is primarily designed for step-down (buck) voltage regulation applications.
Q: Does RT9187CGB have built-in thermal protection? A: Yes, RT9187CGB incorporates built-in thermal shutdown protection to prevent overheating.
Q: Can RT9187CGB be used in automotive applications? A: Yes, RT9187CGB is suitable for automotive applications as it meets the necessary requirements for temperature, reliability, and EMI/EMC.
Q: What is the typical efficiency of RT9187CGB? A: The typical efficiency of RT9187CGB can reach up to 95%, depending on the input and output voltage levels.
Q: Are there any recommended external components for using RT9187CGB? A: Yes, to ensure stability and performance, it is recommended to use input/output capacitors and an inductor as per the manufacturer's guidelines.
Please note that these answers are general and may vary depending on specific application requirements and the manufacturer's datasheet.